>> - Am I correct that the inconsistency #00AA00 => #00AB01 is simply "cost
>> of doing YUV business", or is the reason more nuanced/involved?
I have no idea how ffmpeg's internals work, but yes, if you are between RGB and
YUV then yes, there can be errors, especially in an 8-bit world. The two
approaches describe a different set of colours and there is no lossless
conversion between them. Single-LSB errors such as this would be reasonable.
In general, ffmpeg's internal handling of variable colourspaces is rather
opaque and subject to some dubious assumptions - the libraries are capable of
doing things very flexibly and correctly, but ffmpeg itself often does to make
it easy, or possible, to do things right.
P
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